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<blockquote data-quote="limpwhizkid" data-source="post: 729200" data-attributes="member: 68258"><p>1) this fix is into the beta ? , is it only for streaming to clients then ? and not local play ? </p><p></p><p>The root of the problem is that tswriter, tsreader and streamingserver make a lot of unnecessary and an excessive number of read & write disk operations with live tv. Viewing a HD channel on my setup caused MP and tvserver to perform over 11,000 disk IO operations per second (very high for even a fast disk). This patch removes the unnecessary read/write calls and also reduces the frequency that packets are written to disk (every 43 packets instead of 10 - see below). These optimisations reduce the disk IOs by about 90% to ~1,200 per second on a HD channel.</p><p></p><p>The second cause of the problem is the precise timings that streamingserver seems to require to reliably stream live tv. In this patch i've modified tswriter to dump 43 packets at a time instead of 10. 43 packets equals 8084 bytes which exactly matches the buffer size that streamingserver uses. This, coupled with the reduced number of disk IOs means that the strict timing of streamingserver is matched almost perfectly. The difference has been massive on my setup.</p><p></p><p>2) if it is only after startup , maybe he just started his machine up , and its still in the background starting other processes.</p><p>but there is so much that could affect his performance its impossible to give any directions.. </p><p></p><p>thats probably why everybody says -->> upgrade the hardware <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="limpwhizkid, post: 729200, member: 68258"] 1) this fix is into the beta ? , is it only for streaming to clients then ? and not local play ? The root of the problem is that tswriter, tsreader and streamingserver make a lot of unnecessary and an excessive number of read & write disk operations with live tv. Viewing a HD channel on my setup caused MP and tvserver to perform over 11,000 disk IO operations per second (very high for even a fast disk). This patch removes the unnecessary read/write calls and also reduces the frequency that packets are written to disk (every 43 packets instead of 10 - see below). These optimisations reduce the disk IOs by about 90% to ~1,200 per second on a HD channel. The second cause of the problem is the precise timings that streamingserver seems to require to reliably stream live tv. In this patch i've modified tswriter to dump 43 packets at a time instead of 10. 43 packets equals 8084 bytes which exactly matches the buffer size that streamingserver uses. This, coupled with the reduced number of disk IOs means that the strict timing of streamingserver is matched almost perfectly. The difference has been massive on my setup. 2) if it is only after startup , maybe he just started his machine up , and its still in the background starting other processes. but there is so much that could affect his performance its impossible to give any directions.. thats probably why everybody says -->> upgrade the hardware :D [/QUOTE]
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